Radiator attachment.



' UNITED STATES PATENT OEEICE.

GEORGE lV. NISTLE, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-THIRDS TO ROBERT L. GIFFORD AND EVERETT W. BROOKS, OF CHICAGO, ILLINOIS.

RADIATOR ATTACHMENT.

SPECIISJICATION forming part of .Letters Patent No. 691,796, dated January 28, 1902.

Application tiled July 11,1901.` Serial No. 67.851. (No model.)

T all wwnt t nitty concern- Be it known that I, GEORGE W. NISTLE, a ycitizen of the United Statesof America, and va resident of Chicago, in the county 'of Cook and State of Illinois, have invented certain new and useful Improvements in VRadiator Attachments, of which the following is a specication.

This invention relates to radiator attachxo ments'of that class known as tra-ps for collecting and discharging water of condensation that accumulates in steam heating and other apparatus; and it has for its object, among others, to provide a simple and improved attachment embodying a self regulating or adjusting oat-valve, which may be used in exhaust vheating where it is desired to avoid back pressure on the engine or engines supplying the exhaust. I make prozo vision whereby the interior of the radiator shall be at all times in communication with the vacuum whether'there be any water present or not. v

It is Well, perhaps, to here note that when 2 5 water is not present there will still be some air in the radiator to permit of the egress, of which a small opening is sufcient when the vacuum acts thereon through the valve. Too large an opening would permit the steam to 3o pass through, and if many radiators worked thus they would spoil the vacuum. By the construction and arrangement of parts hereinafter described a very slight opening, which is provided by tipping the float, has been found sufficient and will permit of the use of steam at atmospheric pressure, which would not go into the radiator without the vacuum to help it.

Other objects and advantages of the inven- 4o tion will hereinafter appear, and the novel features thereof will be particularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the nu: merals of reference marked thereon, form a part of this specification, and in which- Figure l is a substantially central vertical section of myimproved attachment; and Fig. 2 is a similar View showing the parts in their 5o normal position, the float-valve being tilted.

Like numerals of reference indicate like parts in the different views. v Referring now to the details of the drawings, 1 designates a casing, which by preference is in the nature of a shell (drawn brass being preferred) screwed into the casting. 2, which has t-he threaded coupling or nipple 3 for attachment to the radiator, (not shown,) and the outlet 4, designed for connection with a water-return pipe, through which the Water 6o of condensation from the radiator is returned to the usual place, it being understood that the nipple or shank having the passage 4 is to be connected with any suitable vacuumproducing device, such as are Well known in the art of steam heating and which it is therefore not necessary to show or further describe.

The body portion of the casting 2 has the outlet-nozzle 5, which is raised above the bottom of the annular chamber 6, into the sur- 7o rounding Wall of which the shell Al is iiXed, and this nozzle is disposed eccentrically with relation to the shell and to said chamber.

6X is a oat orvvalve disposed Wit-hin the shell and of less height than the distance between the top of the nozzle 5 and interior wall of the top of the shell, so that the float may have limited movement within the shell.

In operation withthe .device connected up in the manner described, the port 3 being in 8o communication with the radiator and the port t with the return-pipe and the vacuum-producing device and there being no steam or Water in the radiator or the chamber'or shell 1,it is evident that the oat 6 by its own Weight 85 rests upon the top ofthe outlet-nozzle 5, and by reason of the eccentrical disposition of this nozzle the float will tip over to the side of the casing farthest from the nozzle until the float touches the casing or shell. When in this 9o position, of course the bottom of the float instead of being horizontal and resting flatly upon the top of the outlet-nozzle will be slightly inclined from the horizontal and will leave a small angular-disposed opening or gap between the top of the nozzle and the bottom of the lioat, as is clearly indicated in Fig. 2. This small opening permits the vacuum to pull on the radiator until an equal vacuum exists there, and when the supply-valve of loo the radiator is open, although the steam has no pressure above the atmosphere, it will enter the radiator and be condensed and the water of condensation will fiow into the chamber 6 of the casting and out through the small angular opening '7 between the bottom of the valve and top of the outlet-nozzle .and into the port or passage-way 4 and from thence to the return-pipe. So long as steam is admitted to the radiator there will always be some of it condensing and supplying generally as much water as can flow out through the opening 7, and should the last drop of water be thus taken out the neXt heaviest thing in the radiator being air it follows the Water and is then followed by more water, and as the opening 7 is comparatively small and may not be sufiicient to conduct away all the water, in which case the water will rise in the casing or shell until it lifts the float-valve, and thus fully discloses the full outlet-opening of the outlet-nozzle, and this opening will remain fully uncovered so long as there is water enough present to raise the oat oit from the nozzle. Then the water falls su ffciently,

the oat falls and touching on the upper face of the nozzle is again tilted and the opening 7 only is provided, and the water and air are discharged in the manner above described; but by reason of the comparatively small area of the opening 7 the steam is prevented from escaping.

It will be noted that the casing or shell is but slightly larger in diameter than the float or valve, so that the latter will be guided easily by the casing or shell and allowed to tip only sufficiently to provide the propersized opening between its bottom and the top of the outlet-nozzle.

It will thus be seen that I provide a simple yet efficient means for accomplishing the end sought, and while the structural embodiment of the invention as herein illustrated is what at the present time is considered most preferable it is evident that Variations, modifications, and changes therein may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages, and therefore I do not restrict myself to the details herein disclosed, but reserve the right to make such variations, modications, and changes as come clearly within the scope of the protection prayed.

What I claim as new is 1. In a radiator attachment, the combination of a valve-casing provided with an'inlet and with an outlet nozzle, and a float-valve guided by said casing, the said valve and ontletnozzle having coacting surfaces correspondingly formed, the arrangement of the nozzle relative to the valve being such that the Valve when in its lowest position is normally tilted providing between it and the nozzle a restricted opening, said opening being formed by the tilting of the valve, subst-antially as described.

2. In a radiator attachment, the combination of a valve-casing provided with a Waterinlet and with an outlet-nozzle, said nozzle formed with a substantially plane upper surface, and a float-valve guided by said casing and formed with a substantially plane lower surface, the arrangement of the nozzle relaltive to the valve being such that the valve when in its lowest position, is normally tilted, providing between it and the nozzle a restricted opening, said opening being formed by the tilting of the valve, substantially as described. Y

In a radiator attachment, the combination of a valve-casing provided with a waterinlet and with an eccentrically-disposed outlet-nozzle, and a float-valve guided by said casing and normally supported on said eccentrically-disposed nozzle, the arrangement of the nozzle relative -to the valve being such that the Valve, when in its lowest position, is normally tilted providing between it and the nozzle a restricted opening, said opening be ing formed by the tilting of the valve, substantially as described.

Ll. In a radiator attachment, the combination of avalve-casing provided with a Waterinlet and with an eccentrically-disposed outlet-nozzle,a chamber surrounding the outletnozzle, and a valve normally supported on said outlet-nozzle and guided by said casing, the arrangement of the nozzle relative to the valve being such that the valve when in its lowest position is normally tilted providing between it and the nozzle a restricted opening, said opening being formed by the tilting of the valve, substantially as described.

Signed by me at Chicago, Illinois, this 5th day of July, 1901.

GEORGE YV. NISTLE.

i XVitnesses:

H. P. ALTMAN, H. A. RUMsEY.

IOC 

